Automatic swivel-bottom bench-vise.



I. R; LONG.

AUTOMATIC SWIVEL BOTTOM BENCH VI SE.

APPLICATIONHLED JULY 28. I916.

1,Q46,961 Patented Nov. 20, 1917.

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nnema e airman-Berton EQ QE ISE-m Specification of Letters-Patent.

Patented Nov. 20, 131 7.

Application filed 11115 28, 191,6 seriain'e, 111,828.

To all who met may concern; 1

Be it known that LJOHN R. LONG, a .citizen of the United States,residing at Akron, in the county of Summit andState of Ohio, haveinvented certain new and useful Improvements .in Automatic Swivel BottomBench-Vises, of which the following is, a specification.

This invention. consists in an automatic swivel-bottom bench vise, andis ,an-improvementin the type or, construction of vise shown .in myoriginal yise patent. of. Janu-. ary 29, 1901, and numbered 667,151.

In the accompanying drawings, Figural is a longitudinalsectionalelevation of the complete vise withthe partslocked together. Fig. 2 ishorizontal sectional planview-on line 22-, Fig. 1. Fig. dis a bottomview of the body member Z) of the vise. .Fig.4 isa crosssection-on-lineH, Fig..1.- Fig.5 is a perspective detailof the wedge or key member.

Automatic locking of the fixed jaw or body of the vise 0n the base orstandard by tightening the operating; screw is shown in the patent abovereferredto-and hence the invention in any such broad sense is notclaimed herein. However, in the said construction the locking becomes anincident in the tilting of the pivoted dog 15 by reason of slightlooseness in the guide-bar 10 of the free jaw. Apart from objection tothis construction mechanically and operatively, as is more or lessobvious, I have constructed the present vise on what I regard as amaterially improved plan and with totally different means in so far aslooking and operating the vise is concerned.

Thus, a represents the base proper, which is adapted to be fixed to abench or other support and provided with an annular seat 0r socket of asuitable depth to receive the corresponding annular and comfortablyfitting hub 2 on the bottom of the body I) of the vise. The said bodyhas a flange 3 about the top of said hub resting on said base and isrotatable thereon as well as being adapted to be locked in said base aswill presently be seen.

The said body has the inner jaw 4 as an integral portion thereof and isprovided with an opening through the same front to rear for the outer orslidable jaw member having a channeled shank 6 projecting through thesaid opening and slidable therein-between squarewalls, in thisinstance..yThe aw operating; screw 5 pro ects throughsa d outer aw-into saldshanlgand is operativcly engaged .there with., as usual 7 or inanypreferred way, and'the said screw is threaded into and vthroughabarrel-shaped nut 7 on the top andgfront of what otherwise is a keyonwedge. memberiw.

The hubQQ fthe ody his split front and rear. at v8, the said split.isamplified .or

extended upward through the flange the 1 form of a substantially ;Vshaped recess 9' therein at. the rear wandthence enlarges into theopeningfor the. shank. (i ofthe outer. jaw, so that there isjampleexpansibility insaid body for the comparatively slight lockingexpansion requ iredgin hub 2 to frictionally tighten the samefwithout inanymeasure impairing the efiiciencyor operation. of the It willbezseenthat the said \l'eshaped or flaring recess-,Qgthrough the flange 3 opensintotheho-llow. interior oiflthe body In relatively as seenin .Fig. 2andgthat the split lines 2 inhub pr ovide for the spreading of the hubmeans of said..wedge tov ef-. fectually lock the body in base a.

. Respecting-the wedge andnut member 10,

it will be seen that the nut is on a plane pass through the bore in thetubular proe I jection 12 integral with body I) and has a winged head togrip and turn the same and thereby draw the said wedge into tighteningrelations, or to release the same when the vise is to be rotated on itsbase. Ordinarily, however, when the vise is in use and set in a fixedposition the said screw and wedge are in tightened relations and thevise is thus made solid with its base. But both tightening and releasingof the vise presume as a first step the tightening of the parts byoperating screw 8. This being done and the wedge being tightened therebythe screw 10 is set and the parts are locked, so that then the vise canbe used as ordinarily without aiiecting the wedge, and the nut servesthe same usual function, say as the be noticed, also, that the wedge wrests on the fixed base a at both ends and the sides of the shank 6 reston its flat flaring top, and this brings said shank into bearingrelations at its top with the flat top and side walls in the body 6,thus providing a straight back and forth sliding movement for saidshank. Obviously the automatic locking of the vise on its base willfollow the tightening of the operating screw through engagement of or byjaws i and 5 regardless of any looseness there may be in adjusting screw10, and said screw 10 is employed chiefly to fix the jaws in anypreferred working position on the base, as when the same kind of work isto be done more or less continuously and fixedness of the parts isdesired.

By having the shank 6 of the outer jaw resting on the flat top of wedge'w and said shank confined along its top in body Z) the wedge isprevented from tilting when tightened by screw 8.

In general use the adjusting screw 10 is kept just sufficiently tight totake up the lost motion occasioned by the clamping or unclamping of thevise jaws.

What I claim is:

1. In vises, a base having an annular seat, a vise body constructed tobe expanded in said seat and provided with a flaring recess in its sideabove said base, a flaring wedge in said base having a nut on its topand a jaw operating screw engaged in said nut.

2. In Vises, a base having an annular seat, a vise body having a splitannular bottom occupying said seat and provided with a tapering recessfor a wedge open to the split in said body, a wedge in said recess and ajaw operating screw engaged with said wedge and adapted to tighten andloosen the same.

3. A vise as described, having an annular seat, a body with a split huboccupying said seat and having a flaring recess open to said split, awedge in said recess and an adjusting screw engaged in the end of saidwedge through the wall of said body and adapted to expand said hub.

4. A vise as described having a base with an annular seat, a body memberprovided with an annular split hub occupying said seat and having atapered recess next above said base open to a split in said hub, incombination with a tapered wedge in said recess having a nut on its topand a threaded hole in its end, a jaw controlling screw engaged throughsaid nut and an adjusting screw engaged in said hole.

5. A vise as described having a base with a socket and a vise bodyhaving a split bottom, seated in said socket and a flange resting onsaid base, and said body tapered recess through said flange open to thesplit in the said bottom, a wedge in said recess and an adjusting screwengaged in the end of said wedge and in tightening relations therewith.

In testimony whereof I afiiX my signature in presence of two witnesses.

JOHN R. LONG.

Witnesses F. C. HARROLD, H. T. FISHER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Eatents, Washington, D. G.

